Healthcare provider profile · identity verified

Shannon Beth Goodwin Chambers, MD

Family Practice · MADILL, OK · NPI 1508802216

Profile state: partd only Open Payments: 2025 Medicare Part D: 2024 Last identity check: 2026-08-10 Page data build: 2026-08-12

Verified facts

What the public records show

We did not find matching Open Payments records for this doctor in 2025.

These records do not establish that a payment influenced prescribing or medical care.

Payment overview · 2025

General Payments

We did not find matching Open Payments records for this doctor in the selected program year.

Separate record types

Research & Ownership

Research Payments (direct recipient): not present in the loaded data

Associated Research Funding (for example, named PI): not present in the loaded data

Ownership / Investment: not present in the loaded data

These categories are never added into the General Payments headline. Associated research funding must not be described as money the doctor personally received unless the source record supports that conclusion.

Analysis 1 · Payment-linked products

Products named in Open Payments records

No payment-linked product analysis is available because no matching General Payment records were found for the selected year.

Public prescribing for products named in payments

There is no explicit payment-product set available for a Part D comparison.

The presence of the same drug in both datasets does not show that a payment caused or influenced a prescription.

Analysis 2 · Same-company prescribing overlap

Drugs reported in other payments from the same company that also appear in Medicare Part D

This analysis is independent from products named on this doctor’s individual payment records. A row appears only when the exact Open Payments reporting entity paid this doctor, that same reporting entity reported the drug or biological on at least 10 loaded General Payment records involving at least 2 distinct recipient NPIs, and this doctor has the same non-generic brand in public Part D data. This does not mean the company owns or manufactures the drug.

There is no payer-company set available for this comparison.

These facts do not show that a payment was for the drug, that the company owns or manufactures the drug, or that a payment caused or influenced prescribing.

Public Medicare Part D data

Provider-and-drug rows loaded for 2024

Brand	Generic	Claims	Beneficiaries
Atorvastatin Calcium	Atorvastatin Calcium	638	170
Losartan Potassium	Losartan Potassium	446	102
Amlodipine Besylate	Amlodipine Besylate	413	100
Levothyroxine Sodium	Levothyroxine Sodium	380	87
Meloxicam	Meloxicam	372	119
Lisinopril	Lisinopril	359	92
Omeprazole	Omeprazole	289	79
Gabapentin	Gabapentin	283	69
Potassium Chloride	Potassium Chloride	232	66
Furosemide	Furosemide	227	62
Citalopram Hbr	Citalopram Hydrobromide	191	48
Tamsulosin Hcl	Tamsulosin Hcl	186	47
Trazodone Hcl	Trazodone Hcl	181	50
Metoprolol Tartrate	Metoprolol Tartrate	179	48
Methylprednisolone	Methylprednisolone	172	142
Metformin Hcl	Metformin Hcl	171	42
Fluoxetine Hcl	Fluoxetine Hcl	160	30
Hydrochlorothiazide	Hydrochlorothiazide	152	40
Pantoprazole Sodium	Pantoprazole Sodium	152	41
Montelukast Sodium	Montelukast Sodium	150	44
Celecoxib	Celecoxib	148	28
Eliquis	Apixaban	127	22
Metoprolol Succinate	Metoprolol Succinate	120	36
Escitalopram Oxalate	Escitalopram Oxalate	118	28
Prednisone	Prednisone	115	81
Cefdinir	Cefdinir	113	95
Simvastatin	Simvastatin	110	25
Cyclobenzaprine Hcl	Cyclobenzaprine Hcl	109	49
Rosuvastatin Calcium	Rosuvastatin Calcium	99	27
Amoxicillin	Amoxicillin	95	77
Fluticasone Propionate	Fluticasone Propionate	94	38
Allopurinol	Allopurinol	91	22
Glipizide	Glipizide	87	19
Estradiol	Estradiol	85	21
Albuterol Sulfate Hfa	Albuterol Sulfate	81	44
Clopidogrel	Clopidogrel Bisulfate	73	20
Sertraline Hcl	Sertraline Hcl	72	13
Oxybutynin Chloride	Oxybutynin Chloride	69	13
Pravastatin Sodium	Pravastatin Sodium	68	17
Alendronate Sodium	Alendronate Sodium	64	15
Duloxetine Hcl	Duloxetine Hcl	64	11
Januvia	Sitagliptin Phosphate	63	14
Warfarin Sodium	Warfarin Sodium	63	16
Ezetimibe	Ezetimibe	62	16
Temazepam	Temazepam	62	suppressed
Buspirone Hcl	Buspirone Hcl	61	12
Ozempic	Semaglutide	61	14
Ropinirole Hcl	Ropinirole Hcl	61	13
Tramadol Hcl	Tramadol Hcl	60	13
Lisinopril-Hydrochlorothiazide	Lisinopril/Hydrochlorothiazide	59	16
Azithromycin	Azithromycin	56	51
Ibuprofen	Ibuprofen	54	17
Levofloxacin	Levofloxacin	54	46
Venlafaxine Hcl Er	Venlafaxine Hcl	54	13
Carvedilol	Carvedilol	51	17
Doxycycline Monohydrate	Doxycycline Monohydrate	50	41
Metformin Hcl Er	Metformin Hcl	48	suppressed
Alprazolam	Alprazolam	46	14
Glimepiride	Glimepiride	46	suppressed
Donepezil Hcl	Donepezil Hcl	44	11
Mounjaro	Tirzepatide	42	suppressed
Triamterene-Hydrochlorothiazid	Triamterene/Hydrochlorothiazid	41	suppressed
Esomeprazole Magnesium	Esomeprazole Magnesium	40	suppressed
Finasteride	Finasteride	40	suppressed
Pregabalin	Pregabalin	40	suppressed
Synthroid	Levothyroxine Sodium	40	suppressed
Nebivolol Hcl	Nebivolol Hcl	39	suppressed
Paroxetine Hcl	Paroxetine Hcl	39	suppressed
Trulicity	Dulaglutide	38	suppressed
Ciprofloxacin Hcl	Ciprofloxacin Hcl	37	34
Isosorbide Mononitrate Er	Isosorbide Mononitrate	37	suppressed
Testosterone Cypionate	Testosterone Cypionate	37	11
Lovastatin	Lovastatin	36	suppressed
Tizanidine Hcl	Tizanidine Hcl	36	suppressed
Sulfamethoxazole-Trimethoprim	Sulfamethoxazole/Trimethoprim	35	33
Zolpidem Tartrate	Zolpidem Tartrate	35	12
Anastrozole	Anastrozole	34	suppressed
Gemfibrozil	Gemfibrozil	34	suppressed
Dutasteride	Dutasteride	33	suppressed
Memantine Hcl	Memantine Hcl	30	suppressed
Losartan-Hydrochlorothiazide	Losartan/Hydrochlorothiazide	29	suppressed
Ondansetron Odt	Ondansetron	27	22
Atenolol	Atenolol	26	suppressed
Sotalol	Sotalol Hcl	26	suppressed
Spironolactone	Spironolactone	26	suppressed
Benazepril Hcl	Benazepril Hcl	25	suppressed
Myrbetriq	Mirabegron	25	suppressed
Ventolin Hfa	Albuterol Sulfate	25	suppressed
Nystatin	Nystatin	24	12
Olmesartan Medoxomil	Olmesartan Medoxomil	24	suppressed
Bupropion Xl	Bupropion Hcl	23	suppressed
Cephalexin	Cephalexin	23	21
Naproxen	Naproxen	23	suppressed
Doxazosin Mesylate	Doxazosin Mesylate	22	suppressed
Amoxicillin-Clavulanate Potass	Amoxicillin/Potassium Clav	21	19
Clonidine Hcl	Clonidine Hcl	20	suppressed
Diazepam	Diazepam	20	suppressed
Glipizide Er	Glipizide	20	suppressed
Hydroxyzine Hcl	Hydroxyzine Hcl	20	suppressed
Mirtazapine	Mirtazapine	20	suppressed
Olmesartan-Hydrochlorothiazide	Olmesartan/Hydrochlorothiazide	20	suppressed
Oxybutynin Chloride Er	Oxybutynin Chloride	20	suppressed
Phenytoin Sodium Extended	Phenytoin Sodium Extended	20	suppressed
Valacyclovir	Valacyclovir Hcl	20	suppressed
Amitriptyline Hcl	Amitriptyline Hcl	18	suppressed
Hydrocodone-Acetaminophen	Hydrocodone/Acetaminophen	18	suppressed
Ketoconazole	Ketoconazole	18	11
Quetiapine Fumarate	Quetiapine Fumarate	18	suppressed
Valsartan	Valsartan	18	suppressed
Vitamin D2	Ergocalciferol (Vitamin D2)	18	suppressed
Fluconazole	Fluconazole	17	13
Dicyclomine Hcl	Dicyclomine Hcl	16	suppressed
Farxiga	Dapagliflozin Propanediol	16	suppressed
Symbicort	Budesonide/Formoterol Fumarate	16	suppressed
Tolterodine Tartrate Er	Tolterodine Tartrate	16	suppressed
Fosinopril Sodium	Fosinopril Sodium	15	suppressed
Hydralazine Hcl	Hydralazine Hcl	15	suppressed
Linzess	Linaclotide	15	suppressed
Triamcinolone Acetonide	Triamcinolone Acetonide	15	suppressed
Acyclovir	Acyclovir	14	suppressed
Digoxin	Digoxin	14	suppressed
Irbesartan	Irbesartan	14	suppressed
Premarin	Estrogens, Conjugated	14	suppressed
Amlodipine Besylate-Benazepril	Amlodipine Besylate/Benazepril	13	suppressed
Cilostazol	Cilostazol	13	suppressed
Enalapril Maleate	Enalapril Maleate	13	suppressed
Nifedipine Er	Nifedipine	13	suppressed
Nitroglycerin	Nitroglycerin	13	suppressed
Propranolol Hcl	Propranolol Hcl	13	suppressed
Rabeprazole Sodium	Rabeprazole Sodium	13	suppressed
Sucralfate	Sucralfate	13	suppressed
Estradiol (Once Weekly)	Estradiol	12	suppressed
Eszopiclone	Eszopiclone	12	suppressed
Trelegy Ellipta	Fluticasone/Umeclidin/Vilanter	12	suppressed
Baclofen	Baclofen	11	suppressed
Clonazepam	Clonazepam	11	suppressed
Eletriptan Hbr	Eletriptan Hydrobromide	11	suppressed
Hydroxychloroquine Sulfate	Hydroxychloroquine Sulfate	11	suppressed
Hydroxyzine Pamoate	Hydroxyzine Pamoate	11	suppressed
Mometasone Furoate	Mometasone Furoate	11	suppressed
Nortriptyline Hcl	Nortriptyline Hcl	11	suppressed
Valsartan-Hydrochlorothiazide	Valsartan/Hydrochlorothiazide	11	suppressed

Timeline

Payment and prescribing data by year

Open Payments and Medicare Part D may refer to different years. They are shown separately rather than aligned as if they describe the same period.

Year	General Payments	Main payer	Explicit products	Company overlaps	Part D coverage
2025	—	—	—	—	—
2024	—	—	—	—	Complete

Questions to ask

Questions you could discuss with your doctor

Are there reasonable alternatives I should understand when we discuss treatment options?
How should I interpret the industry-payment records shown here in the context of my care?

These are general questions generated from reviewed templates. They are not personalized medical advice.

Sources and limitations

How to read this page

Payment and Medicare prescribing data can cover different years; every comparison shows both years explicitly.
Part D does not represent a doctor’s entire practice; it excludes many patients and is subject to CMS public-release thresholds.
Company–drug relationships must have an auditable source, a precise relationship type, and a valid evidence period. Unresolved mappings are not published.
Generic drug claims are not attributed to a specific manufacturer without manufacturer-level evidence.
When a source extract is incomplete, missing rows are never treated as proof of no payments or no prescriptions.

Loaded source releases

Dataset	Year	Publication	Source
CMS Open Payments — General Payments	2025	2026-06-30	Original source
Medicare Part D Prescribers by Provider and Drug	2024	2026-05-06	Original source
NPPES Data Dissemination V2	current / reference data	2026-08-10	Original source

Methodology version: 2.1

Editorial template version: 2.4

Product contract version: 2.0

Schema version: 0.7.0

Page data build: 2026-08-12T23:34:59.370714+00:00

Publication policy: eligible for indexing after public-launch controls are enabled

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